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Page 367, results 9151 - 9175

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Not all publications have extents, not all extents are completely accurate
Geochemical maps showing the distribution and abundance of zinc in the Tanacross Quadrangle, Alaska
G.C. Curtin, G.W. Day, R. M. O’Leary, S.P. Marsh, R. B. Tripp
1976, Miscellaneous Field Studies Map 767-I
This series of geochemical maps shows the distribution of zinc in four sample media: (A) the oxide residue (oxalic-acid-leachable fraction) of the stream sediment, (B) the minus-80-mesh steam sediment, (C) the ash of streambank sod (mixed organic and inorganic material) collected beneath the water level, and (D) the ash of...
Preliminary report on water availability in the lower Ship Creek basin, Anchorage, Alaska : with special reference to the fish hatchery on Fort Richardson and a proposed fish-hatchery site near the Elmendorf Air Force base power-plant
Geoffrey W. Freethey
1976, Water-Resources Investigations Report 75-48
The availability of surface water and shallow ground water in the lower Ship Creek basin, Anchorage, Alaska, was examined using 28 years of streamflow records and well logs. Streamflow gains and losses were estimated from 23 seepage investigations made since May 1957. A contour map of the top of the...
Microprobe study of olivine chromitites of the Goodnews Bay ultramafic complex, Alaska, and the occurrence of platinum
M. L. Bird, A. L. Clark
1976, Journal of Research of the U.S. Geological Survey (4) 717-725
Electron-microprobe analyses of the dunite and olivine chromitite of the ultramaflc complex at Goodnews Bay, Alaska, show that the chromite contains more ferrous and ferric iron than is found in chromite from alpine or stratiform complexes. The iron-magnesium distribution coefficients between chromite and olivine demonstrate that more ferrous iron...
Evaluation of three collecting methods for a reconnaissance of stream benthic invertebrates
K. V. Slack, J. W. Nauman, L. J. Tilley
1976, Journal of Research of the U.S. Geological Survey (4) 491-495
A 1-day reconnaissance of the Dietrich River, Alaska, included collection of benthic invertebrates. Three methods were used at each of five stations to increase sampling effectiveness and to evaluate each method. Chironomidae and Plecoptera comprised 91 percent of all individuals and 47 percent of all taxa in the combined faunal...
Epifauna at Jackson Point in Port Valdez, Alaska, December 1970 through September 1972
Jon W. Nauman, Donald R. Kernodle
1976, Journal of Research of the U.S. Geological Survey (4) 299-304
A biological sampling program at Jackson Point in Port Valdez, Alaska, was begun in December 1970. Sixteen artificial substrate samplers (8 multiplate and 8 rock-fllled baskets with net liners) were retrieved after 2 to 4 months' exposure. The most common groups in order of their abundance were Copepoda, Foraminifera, Nematoda,...
A reconnaissance study of the uranium and thorium contents of plutonic rocks of the southeastern Seward Peninsula, Alaska
Thomas P. Miller, Carl M. Bunker
1976, Journal of Research of the U.S. Geological Survey (4) 367-377
Large granitic Cretaceous plutons are exposed along and adjacent to an arcuate belt of igneous and high-grade raetamorphic rocks in the southeastern Seward Peninsula of Alaska. Reconnaissance studies of these plutons have shown that the Darby pluton has well above average amounts of uranium and thorium (11.2 ppm and 58.7...
The Placer River Silt — An intertidal deposit caused by the 1964 Alaska earthquake
A.T. Ovenshine, Daniel E. Lawson, S. R. Bartsch-Winkler
1976, Journal of Research of the U.S. Geological Survey (4) 151-162
At the head of Turnagain Arm near Anchorage, the major lasting geologic consequence of the Alaska earthquake of 1964 was deposition of the Placer River Silt, an intertidal deposit covering an area of more than 18 km2 and containing more than 20X106 m3 of sediment. This formation, which was derived...
Structure and evolution of Bering Sea shelf south of St. Lawrence Island
Michael S. Marlow, David W. Scholl, Alan K. Cooper, E. C. Buffington
1976, AAPG Bulletin (60) 161-183
The virtually featureless Beringian shelf south of St. Lawrence Island is underlain structurally by at least 14 basins. Encompassing a total area of more than 300,000 sq km, most of the basins are either elongate structural sags, grabens, or half (asymmetric) grabens beneath the outer shelf. The regional trend of...
Geohydrology and water supply, Shemya Island, Alaska
Alvin John Feulner, Chester Zenone, K. M. Reed
1976, Open-File Report 76-82
Sheyma Island, Alaska, was occupied as a military base in 1942. Since that time, potable water has been supplied by streams, lakes, wells, and in the late 1950's, a gallery system. The island is a low-lying, wave-cut platform composed of pyroclastic and volcanic rocks with some intrusives. Bedrock is overlain...
Earthquake watch
M. Hill
1976, Earthquake Information Bulletin (USGS) (8) 10-11
 When the time comes that earthquakes can be predicted accurately, what shall we do with the knowledge? This was the theme of a November 1975 conference on earthquake warning and response held in San Francisco called by Assistant Secretary of the Interior Jack W. Carlson. Invited were officials of State...
Radiochemical monitoring of water after the Cannikin event, Amchitka Island, Alaska, August 1974 and chemical monitoring from July 1972 to June 1974
Wilbur C. Ballance, William Thordarson
1976, Report
Radiochemical data from the Arnchitka Island study area were obtained from water samples collected by the U.S. Geological Survey during August 1974. Tritium determinations were made on 18 samples, and gross alpha and gross beta/ gamma determinations were made on 12 samples. No appreciable differences were found between the data...
Radiochemical monitoring of water after the Cannikin event, Amchitka Island, Alaska, May 1974
William Thordarson, Wilbur C. Ballance
1976, Report
During May 1974, the U.S. Geological Survey collected water samples from Amchitka Island, Alaska. Tritium determinations were made on 99 water samples, and dissolved gross alpha and gross beta/gamma determinations were made on 34 water samples, No appreciable differences were found between the data obtained in May 1974 and the...
Zoned Cr, Fe-spinel from the La Perouse layered gabbro, Fairweather Range, Alaska
G.K. Czamanske, G. R. Himmelberg, F.E. Goff
1976, Earth and Planetary Science Letters (33) 111-118
Zoned spinel of unusual composition and morphology has been found in massive pyrrhotite-chalcopyrite-pent-landite ore from the La Perouse layered gabbro intrusion in the Fairweather Range, southeastern Alaska. The spinel grains show continuous...
Ground-water quality beneath solid-waste disposal sites at anchorage, Alaska
Chester Zenone, D.E. Donaldson, J.J. Grunwaldt
1975, Ground Water (13) 182-190
Studies at three solid-waste disposal sites in the Anchorage area suggest that differences in local geohydrologic conditions influence ground-water quality. A leachate was detected in ground water within and beneath two sites where the water table is very near land surface and refuse is deposited either at or below the...